blob: 7fc3a9092e34e0625c8f0bf9068fb85367820795 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#include <amdblocks/acpimmio.h>
#include <console/console.h>
#include <delay.h>
#include <device/device.h>
/**
* Southstation using SB GPIO 17/18 to control the Red/Green LED
* These two LEDs can be used to show the OS booting status.
*/
static void southstation_led_init(void)
{
/* multi-function pins switch to GPIO0-35 */
pm_write8(0xea, (pm_read8(0xea) & 0xfe) | 1);
/* select IOMux to function2, corresponds to GPIO */
iomux_write8(0x11, (iomux_read8(0x11) & 0xfc) | 2);
iomux_write8(0x12, (iomux_read8(0x12) & 0xfc) | 2);
/* Lighting test */
gpio_100_write8(0x11, 0x08); //output high
gpio_100_write8(0x12, 0x08);
mdelay(100);
gpio_100_write8(0x11, 0x48); //output low
gpio_100_write8(0x12, 0x48);
}
/**********************************************
* Enable the dedicated functions of the board.
**********************************************/
static void mainboard_enable(struct device *dev)
{
printk(BIOS_INFO, "Mainboard " CONFIG_MAINBOARD_PART_NUMBER " Enable.\n");
southstation_led_init();
/*
* Initialize ASF registers to an arbitrary address because someone
* long ago set things up this way inside the SPD read code. The
* SPD read code has been made generic and moved out of the board
* directory, so the ASF init is being done here.
*/
pm_write8(0x29, 0x80);
pm_write8(0x28, 0x61);
}
struct chip_operations mainboard_ops = {
.enable_dev = mainboard_enable,
};
|
